Subject: Theology
Author of work: Gregorius I
Title: Moralia
Subject: Biblica
Title: Biblia
Subject: Music
Title: Polyphonic music
Subject: Canon Law
Author of work: Guido de Baysio
Title: Comment. in Sextum librum Decretalium
Subject: Canon Law
Author of work: Gratianus
Title: Decretum
Subject: Civil Law
Author of work: Justinianus
Title: Digestum vetus
Subject: Civil Law
Author of work: Justinianus
Title: Digestum vetus
Subject: Civil Law
Title: Comment. on Digestum novum
Subject: Theology
Author of work: Bernardus Clarevallensis
Title: Meditationes, &c.
Subject: Theology
Title: Comment. on Psalms